家电零部件板块1月7日跌1.2%，同星科技领跌，主力资金净流出18.62亿元

Group 1 - The home appliance parts sector experienced a decline of 1.2% on January 7, with Tongxing Technology leading the drop [1][2] - The Shanghai Composite Index closed at 4085.77, up 0.05%, while the Shenzhen Component Index closed at 14030.56, up 0.06% [1] - Key stocks in the home appliance parts sector showed varied performance, with Longdi Group rising by 6.99% and Tongxing Technology falling by 2.98% [1][2] Group 2 - The net outflow of main funds in the home appliance parts sector was 1.862 billion yuan, while retail investors saw a net inflow of 1.764 billion yuan [2] - The table of fund flows indicates that Kangsheng Co. had a significant net inflow from main funds of 150 million yuan, while Tongxing Technology saw a net outflow of 138.90 million yuan [3] - Retail investors contributed positively to several stocks, with notable inflows into Kangsheng Co. and Zhenbang Intelligent [3]